You'll need to use a monospaced font such as Courier New and set your
margins such that only 73 characters will fit.

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"beckybun" wrote in message
...
I am trying to type the text of a letter in Word so that I can cut & paste
it
into our mainframe. Our system only allows 73 characters per line and it
does not automatically wrap the text. I've only found places where I can
set
a width based on "pt" sizes, not characters.